Neck

When exhausted, the smart thing to do is to rest.
As a matter of fact, then to rest is the best.
When you are energetic, on the other hand,
you don't vision the going to rest as so grand.

So the state of to be makes the value of worth.
Any value is temporal, being of earth.
What is temporal not is the husband to wife,
and the son, to whom both the wife has got a life.